Suction apparatus for pneumatic cleaning systems.



No. 893,854. PATENTED JULY 21, 1908. W. LOGKE & E. B. DUNN.

SUCTION APPARATUS FOR PNEUMATIC CLEANING SYSTEMS. APPLICATION FILEDSEPT: 28, 1907 20 13 J 12 a f '7 if m llz'amlock I (ERA/W3 I 5 W122 whoto 64w Elzaslmum A,

WILLIAM LOOK'E, F W-EsTFIELn,

i ,To al l'whomit concern: I i

v 'United States, and a resident of East Orange,

county of Essex, State of New Jersey, have 3T5, ger or through which theair is drawn by the- .flushed and all dirt that might-come in con natureof a the form of-'aprons, the s aces around ED A ES PA E T. E

. RATION on NEW YORK.

I v I AND'ELIAS'B. DUNN, oFfEAsT ORANGE, NEW JERSEY, assIeNoRs, BYMEsNnAssIeNMEnTs, .TO VACUUM ENGINEERING COMPANY, A GORPO- suo'rronarranajrns son PNEnMArIo cnnanme sYs'rnM lie itknown that we, WILLIAMLooKE, a citizen of the, United States,- and a resident of ,,Westfield,count% of Union, State of New Jersey,.and ELIAS 'DUNN, a citizen of theinvented certain new and useful Improvejments in Suction Apparatus forPneumatic Cleaning Systems, .of which-the following is a full, clear,and complete disclosure.

Briefly stated, this form of our invention relates to improvements inapparatus for produclnga pneumatic suction for 1136111 is:

connection with systems bf" removing'dirtand dust through a partialvacuum or neumatie suction, and'co'mp'rises a device 111 the e pump;that is provided with such a' constructlon that the parts thereof arecom letely protected from the action of dirt or ust passing {through thesame, and

whereby the dust-laden air maybe taken directly, into the apparatus,thus avoiding necessity of using costly and undesirable 'separatinapparatus for extracting the dust 'and'dirt om the air. V i IThefur'ther object of our invention .in- "volving the-constructionreferred to, is to prevent the possibility of serious ex losion y theignltion of fine particles of ust ,in rapid motion, and is obtained bythoroughly,

he construction -of this 'form. f

istonf located in a piston c amber aboveftlie-body' of the liquid, suchas water,

plunger or piston; also means for completely protecting the piston, saidmeans beingl in w 'ch areprovided with a supp y of liquid, such aswater, so that said spaces are, continually tact with the piston iscompletely carried away. -The construction also embodies a certainarrangement of parts, hereinafter to be'more fully pointed out, wherebythe arrangement of the suction apparatus is greatly simplified and itsefiiciency lncreased.

The apparatus above referred to produces a vacuum or partial vacuumwhichis trans mitted to suitable conduits or pipes through a suction nozzle,which is" a aptcd to e passed over the surface to be cleaned, so

Specification 61 Letters Patent. Application filed September 28, 1907.Serial No. 395,038. J

Patented July 21; 1908.

that'the dust and-air, or dust, air and water that are thereby caused toenter the nozzle 7 are carried through the conduits to the suctiondevice, where they become'mixed with liquid, the mixture then beingejected therefrom and discharged into the sewer or other waste ,pipe.For a full, clear and exact description of this form of. the invention,

reference maybe had to the following speci fication, together with the.accompanyin drawings forming. a part thdreof, in whic the figure shownis a vertical sectional view of the suction apparatus takensubstantially on the axial 11116 of the piston chamber.

claimed in our 305,015.

.Referring to the drawing, the numeral -1 indicates a suitable cylinderfor driving the suction'apparatus and may be 0 erated'by steam or othersuitable fluid, said cylinder' 1 prior'application Serial N 0.

.being connectedwith suitable valves2 for :iplerating the piston withinthe cylinder 1. i e said piston is attached to a piston rod 3, which,extends through the suction of pump chainber"4 and carries the umppiston 5.

The pistonrod 3 extends be ow the" suction cross-head 6 which carriesthe connecting rod 7, acting upon the transverse shaft S, by means of acrank (not shown), earned by said shaft 81in the ,wellknown manner. The

valve rod 9 for operati the valves 2 is also connected with said sha t 8by means of the usual. eccentric or other similar device. The pumppiston5 is provided at its upper'end with an suitable packing suchas'shown at 10, the ower portlon of said piston 5 being somewhat smallerthan the interior dimensions of the pump chamberA 'so as to provide sace for. an apron or'cylindrical guard 11,

This form of theinvention is, a modification of. the suction apparatusdescribed and chamber and is connected with',the usual he apron 11extends downwardly from the portion of the piston carrying the packing10 and is substantially concentric with the lower portion of thefpiston5. The lower portion of the pump cylinder 4 is provided with acorresponding upwardly extending apron 12, which works 111' the spacebetween the apron 11 and the lower portion of the piston About thecentral portion of the cylinder 41s provided a circular groove orchannel 13 which is connected at one point with a'water inlet pipe, asindicated at 14. At the lowezcommunicates with the saturation chamber 16formed within the casing 17. In the lower portion'ofthe chamber 16 areplaced suitable inletvalves 18 and inthe u per portion of said chamber16 are place suitable outlet valves 19, A discharge pi e 20 communicateswith the saturation c amber '16 above the level of the outlet valves 19.Within the saturation chamber 16 are provided suitable battle plates21-located so as to be below the surface of the liquid in saidchan'iber. The lower portion of the suction chamber 16 is connected witha suitable inlet conduit 22 which communicates with the pipes or tubesto whichthe suction cleaning instruments are attached.

When the device is in operation, water is admitted through, the pipe 14and fills the,

space between the apron 12 and the walls of the cylinder 4,therebyproviding a waterseal'into which the apron 11 extends. The

' constant'supply of water through the pipe14 causes the same tooverflow the upper edge 7 of the apron 12 and run downward into thelower portion of the suction chamber 4. The water level in the suctionchamber 4 and consequently in the saturation ch'amber 16'is maintainedsubstantially at the pointindicatedby the. dotted 'lineA, saidsaturation chamber 16 thereby being filled with water up to a pointslightly belowthe end "of the discharge pipe -20.. The constant flow ofthe water through tlid inlet 14 and around "the aprons 11 and 12constantly flushes out .the spaces around and between said apron,thereby keeping them clean and free from dirt and grit whlch are drawninto the suction chamber 16 and intojthclower portion of the pumpchamber l ll' As the pum piston 5 reeiprocates, air and dirt, or air,irt and water, are :periodically drawn into' and expelled from the pipes22 and 20, respectively, thedirt being thoroughly mixed with the waterin the saturation chamber 16 'byj' a discharge through the, baffleplates 21. The mixture of dirt, waterand'air is expelled through thedischarge pipe .ZO an'd )asses off directly to' the sewer or through amuffler, as described in conncctlon with they previous form of thisdevice. 1 It should be .noted that the main differences between thisform of the invention and the'form previously described is that thesaturation chamber Y soa ssa is situated at one side of the pump instead-of immediately "below' -thelatter, and that the automatic inlet andoutlet valves for the water have been omittedfwhile the.

outlet valves for, the mixture are placed in the saturation "chamberinstead of in the piston. .It is obvious that this form of the suctionapparatus may be operated by-"other means than a steam driven piston,such'as by an electric motor as shown inconnection with the previousform of the apparatus;

' Having particularly describer this form of our invention, whatwe-claim and desire to protect by Letters Patent is:

' 1. In a pneumatic'suction cleaningappa ratus, the, combination ofiaTsaturatmg chamber and piston chamben a non-submerged reciprocatingpiston therem f an apron 'inclosed between the saturatang chamber andthe piston chamber, ,gmeansz for providing a supply of fresh Water tothe space around said apron, and reciprocating the piston.

means for 2. In a pneumatic suction cleaningappr- 'ratus, thecombination of a saturatlngv chamber, a piston chamber,- a non-submergedreciprocating piston therein; an a-onon -carried by said piston, aseoondapron attached to the'interior of the piston chaml'mr,v means forproviding a sup 1y offresh waterte-the;

space between sale second apron andvthe surface of said piston. chamber,andwxneans for rbeiprocating the piston.

. Ju 3. In a pneumatic suction cleaning appa ratus, the combination of apiston chamber};

a saturating chamber 'COIIIIIIUHi'CfitiDgnNltlI the lower portion ofsaid piston chamber,

a non submerged reciprocating istom in:

said piston chamber, a downwardly'cxtmiding apron carried thereby, anupwarilly extending apron attached tov the interior of the pistdnchamber and overlapping said downwardly extending apron,- means forproviding asupply of fresh water to'the spaces exterior piston chamberand in said saturatingtclfamsaid, aprons, meansrgfoi maintain-mg ad'efinlte level ,ofwatermisaid er, and'means for reciprocating the;.piston. Dated, this 27th day of Septemberp1i907. 1

, 'WILLIAM more. W

